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Title: Determination of reactive mass transfer coefficients for CO2 absorption predictions

Abstract

Absorption of carbon dioxide (CO2) by solvents is an important process in many practical applications such as capture of greenhouse gases from flue gas, gas processing in the chemical and petroleum industries, capture of radioactive isotopes in the nuclear cycle, etc. High pH alkaline solutions were used in this research project to capture CO2. The chemical reaction between CO2 and the hydroxyl ion is known to significantly increase the absorption rate compared to the same process without chemical reaction. The aim of this report is to study the influence of the chemical reaction on the absorption rate. Because of this, the gas-liquid mass transfer coefficient was measured under reactive and nonreactive conditions. Reactive mass transfer coefficient values were higher than similar ones without chemical reaction. Under the operating conditions used in this work, the mass transfer process was found to be controlled by the liquid phase resistance.

Authors:
ORCiD logo [1]; ORCiD logo [2]
  1. Prairie View A&M Univ., Prairie View, TX (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Nuclear Energy (NE)
OSTI Identifier:
1531238
Grant/Contract Number:  
AC05-00OR22725; NFE-12-03822
Resource Type:
Accepted Manuscript
Journal Name:
Separation Science and Technology
Additional Journal Information:
Journal Volume: 54; Journal Issue: 13; Journal ID: ISSN 0149-6395
Publisher:
Taylor & Francis
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; CO2 absorption; mass transfer coefficients; reactive absorption

Citation Formats

Gabitto, Jorge, and Tsouris, Costas. Determination of reactive mass transfer coefficients for CO2 absorption predictions. United States: N. p., 2019. Web. doi:10.1080/01496395.2019.1603240.
Gabitto, Jorge, & Tsouris, Costas. Determination of reactive mass transfer coefficients for CO2 absorption predictions. United States. doi:10.1080/01496395.2019.1603240.
Gabitto, Jorge, and Tsouris, Costas. Sat . "Determination of reactive mass transfer coefficients for CO2 absorption predictions". United States. doi:10.1080/01496395.2019.1603240. https://www.osti.gov/servlets/purl/1531238.
@article{osti_1531238,
title = {Determination of reactive mass transfer coefficients for CO2 absorption predictions},
author = {Gabitto, Jorge and Tsouris, Costas},
abstractNote = {Absorption of carbon dioxide (CO2) by solvents is an important process in many practical applications such as capture of greenhouse gases from flue gas, gas processing in the chemical and petroleum industries, capture of radioactive isotopes in the nuclear cycle, etc. High pH alkaline solutions were used in this research project to capture CO2. The chemical reaction between CO2 and the hydroxyl ion is known to significantly increase the absorption rate compared to the same process without chemical reaction. The aim of this report is to study the influence of the chemical reaction on the absorption rate. Because of this, the gas-liquid mass transfer coefficient was measured under reactive and nonreactive conditions. Reactive mass transfer coefficient values were higher than similar ones without chemical reaction. Under the operating conditions used in this work, the mass transfer process was found to be controlled by the liquid phase resistance.},
doi = {10.1080/01496395.2019.1603240},
journal = {Separation Science and Technology},
number = 13,
volume = 54,
place = {United States},
year = {2019},
month = {4}
}

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